The electrical and magnetic properties of materials are governed by the behavior of electrons within them. Understanding these electronic states, which are key to the functional properties of materials, is therefore essential for the discovery of new materials and the design of advanced devices. 
We investigate the static and dynamic electronic states of materials using advanced photoemission spectroscopy techniques, including spin- and angle-resolved photoemission spectroscopy (SARPES), which enables precise measurements of spin-resolved electronic structures, and nanoscale photoemission spectroscopy under applied electric fields. Our current research focuses primarily on two-dimensional semiconductors, quantum materials, and magnetic materials.